Function ConPrintFramerate

src/framerate_gui.cpp:999–1058

Print performance statistics to game console */

/** Print performance statistics to game console */
void ConPrintFramerate()
{
	const int count1 = NUM_FRAMERATE_POINTS / 8;
	const int count2 = NUM_FRAMERATE_POINTS / 4;
	const int count3 = NUM_FRAMERATE_POINTS / 1;

	IConsolePrint(TC_SILVER, "Based on num. data points: {} {} {}", count1, count2, count3);

	static const std::array<std::string_view, PFE_MAX> MEASUREMENT_NAMES = {
		"Game loop",
		"  GL station ticks",
		"  GL train ticks",
		"  GL road vehicle ticks",
		"  GL ship ticks",
		"  GL aircraft ticks",
		"  GL landscape ticks",
		"  GL link graph delays",
		"Drawing",
		"  Viewport drawing",
		"Video output",
		"Sound mixing",
		"AI/GS scripts total",
		"Game script",
	};
	std::string ai_name_buf;

	bool printed_anything = false;

	for (const auto &e : { PFE_GAMELOOP, PFE_DRAWING, PFE_VIDEO }) {
		auto &pf = _pf_data[e];
		if (pf.num_valid == 0) continue;
		IConsolePrint(TC_GREEN, "{} rate: {:.2f}fps  (expected: {:.2f}fps)",
			MEASUREMENT_NAMES[e],
			pf.GetRate(),
			pf.expected_rate);
		printed_anything = true;
	}

	for (PerformanceElement e = PFE_FIRST; e < PFE_MAX; e++) {
		auto &pf = _pf_data[e];
		if (pf.num_valid == 0) continue;
		std::string_view name;
		if (e < PFE_AI0) {
			name = MEASUREMENT_NAMES[e];
		} else {
			ai_name_buf = fmt::format("AI {} {}", e - PFE_AI0 + 1, GetAIName(e - PFE_AI0));
			name = ai_name_buf;
		}
		IConsolePrint(TC_LIGHT_BLUE, "{} times: {:.2f}ms  {:.2f}ms  {:.2f}ms",
			name,
			pf.GetAverageDurationMilliseconds(count1),
			pf.GetAverageDurationMilliseconds(count2),
			pf.GetAverageDurationMilliseconds(count3));
		printed_anything = true;
	}

	if (!printed_anything) {
		IConsolePrint(CC_ERROR, "No performance measurements have been taken yet.");